*
     * The source indicates whether the property is:
     * - Set by Maven itself at startup (SYSTEM_PROPERTIES)
     * - Configured by users through external means like CLI options (USER_PROPERTIES)
     * - Defined in the project's POM file (MODEL)
     *
     * @return the source of the configuration property, defaults to USER_PROPERTIES

 */
package org.apache.maven.cling.invoker.mvnup.goals;

import java.nio.file.Path;
import java.util.List;
import java.util.Map;

import eu.maveniverse.domtrip.Document;
import org.apache.maven.api.cli.mvnup.UpgradeOptions;
import org.apache.maven.api.di.Inject;
import org.apache.maven.api.di.Named;
import org.apache.maven.api.di.Singleton;
import org.apache.maven.cling.invoker.mvnup.UpgradeContext;

/**

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cli.transfer;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.ArrayBlockingQueue;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.CountDownLatch;

import eu.maveniverse.domtrip.Document;
import eu.maveniverse.domtrip.Element;
import eu.maveniverse.domtrip.maven.Coordinates;
import eu.maveniverse.domtrip.maven.MavenPomElements;
import org.apache.maven.api.cli.mvnup.UpgradeOptions;
import org.apache.maven.cling.invoker.mvnup.UpgradeContext;

import static eu.maveniverse.domtrip.maven.MavenPomElements.Elements.PARENT;

/**

<div class="termy">

```console
$ pytest

================ test session starts ================
platform linux -- Python 3.6.9, pytest-5.3.5, py-1.8.1, pluggy-0.13.1
rootdir: /home/user/code/superawesome-cli/app
plugins: forked-1.1.3, xdist-1.31.0, cov-2.8.1
collected 6 items

---> 100%

test_main.py <span style="color: green; white-space: pre;">......                            [100%]</span>

 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.maven.cli.props;

import java.io.IOException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.Enumeration;
import java.util.Map;
import java.util.StringTokenizer;

        } else {
            System.clearProperty(Constants.MAVEN_LOGGER_DEFAULT_LOG_LEVEL);
        }
    }

    @Test
    void testNoCliOptionsDoesNotSetSystemProperty() {
        // Simulate the scenario where no CLI options are specified
        // This should NOT call setRootLoggerLevel, allowing configuration file to take effect

        MockInvokerRequest invokerRequest = new MockInvokerRequest(false); // not verbose

import java.nio.file.Path;
import java.util.Map;
import java.util.concurrent.atomic.AtomicReference;
import java.util.function.Consumer;

import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.cli.InvokerRequest;
import org.apache.maven.api.services.Lookup;
import org.apache.maven.cling.invoker.LookupContext;
import org.apache.maven.cling.invoker.LookupInvoker;
import org.apache.maven.cling.utils.CLIReportingUtils;

import org.apache.maven.api.Constants;
import org.apache.maven.api.MonotonicClock;
import org.apache.maven.api.annotations.Nullable;
import org.apache.maven.api.cli.InvokerRequest;
import org.apache.maven.api.cli.Logger;
import org.apache.maven.api.cli.mvn.MavenOptions;
import org.apache.maven.api.services.BuilderProblem;
import org.apache.maven.api.services.Lookup;
import org.apache.maven.api.services.Sources;

## Resumen { #recap }

Puedes usar múltiples worker processes con la opción CLI `--workers` con los comandos `fastapi` o `uvicorn` para aprovechar los **CPUs de múltiples núcleos**, para ejecutar **múltiples procesos en paralelo**.